MULFORD KXPLOKATION OF THE AMAZON VALLEY 



281 



KT'PHORBLVCFAE 



Phyllanthus pseudo-nobilis 



(Section Cicca.) (Stainiiialc plant.) Glabrous, the branch- 

 lets numerous, short, spreading, floriferous except at the sum- 

 mit, where they bear young developing leaves. Stipules 2 mm. 

 long, narrow, regularly acuminate from the base, thin. Young- 

 leaves 2 to 6 cm. long, oblanceolate, shortly acuminate at both 

 ends, minutely cuspidate, tapering into a short petiole, entire, 

 the secondaries 8 to 10 on each side and strongly falcate-ascend- 

 ing, the venation finely anastomosing. Umbels clothing the 

 branchlets, many-flowered, the pedicels densely clothed at the 

 base with minute white scales, filiform, unequal, some nearly 1 

 cm. long, the fully expanded flowers nearly 2 mm. wide. Sepals 

 4, oval, blunt, two of them Avider, slightly connate at the base. 

 Stamens four, distinct, slightly exceeding the sepals, the fila- 

 ments stout, the anthers subgiobular. 



Eurrenabaque, 1,000 feet, H. H. Rushy, October 6, 1921 {no. 

 793). Species closely resembling those forms with loose inflor- 

 escence which have been referred to P. nohilis, but which appear 

 distinct therefrom. This species, however, is distinct, as to both 

 leaves and flowers. 



Phyllanthus ibonensis 



(Section Cicca.) (Pistillate plant.) Glabrous, the branchlets 

 slender, leafy, thickly covered with small, whitish, elevated len- 

 ticels. Petioles 3 to 5 mm. long, stout, blackish, the margins 

 strongly incurved. Blades 5 to 10 mm. long, 2 to 4 cm. wide, 

 sometimes inaequilateral, lanceolate, regularly acuminate and 

 acute, subcordate, entire, thickisli, the midrib and secondaries 

 slightly prominent beneath, the secondaries 6 to 8 on a side, 

 strongly falcate-ascending, the venation loosely and lightly re- 

 ticulate. Racemes several, crowded on reduced nodiform branch- 

 lets, unequal, less than 1 cm. long, flexuous, loosely several-flow- 

 ered, the bracts subulate. Pedicels filiform, 2 or 3 mm. long, 

 slightly thickened upAvard. Flower 1 to 1.5 mm. long and broad, 

 eampanulate. .Sepals 5, somewhat connate at the base, thickish, 

 the summits lightly recurved, oblong, obtuse. Ovary ovoid, 

 shorter than the 3 stout, separate, subulate recurved styles, 

 which slightly exceed the perigone. Fruit (mature ?) 3 nmi. 

 long, shortly and broadly ovoid or obovoid, the base loosely in- 

 vested by the persistent calyx. 



